Can't install guests - hanging

[D'Arcy Cain]

I was trying to install a guest using vm-bhyve.  Everything seemed to be
fine until I went to install the ISO.  I used this command;

  # vm install -f myubuntu <ISO>

For ISO I tried these:
 - ubuntu-16.04.6-desktop-amd64.iso
 - ubuntu-18.04.3-desktop-amd64.iso
 - ubuntu-18.04.3-live-server-amd64.iso

I get the first menu screen and select "Install Ubuntu".  The screen
then goes blank and nothing happens from that point on.  The CPU usage
is 100%.

So, then I tried TrueOS.  It also hung.  Here is what it displayed when
it hung:

/boot/kernel/opensolaris.ko size 0xa530 at 0x264d000
/boot/kernel/aesni.ko size 0xc830 at 0x2658000
/boot/kernel/tmpfs.ko size 0x10ac8 at 0x2665000
/boot/kernel/geom_eli.ko size 0x1ea40 at 0x2676000
can't find '/boot/entropy'
/boot/kernel/zfs.ko size 0x3aa260 at 0x2695000
|

That last character is supposed to be the spinner but it just sits there
in one poition.

I then tried FreeBSD.  I assumed that if anything was going to work it
would be that.  However even that fails.  It hangs here:

Loading configured modules...
can't find '/boot/entropy'
/

The spinner is not moving again.  I know that I used to be able to
install different OSs but something on my server must have changed.  I
can't figure out what though.  Can anyone suggest something that I can
check?

FreeBSD dilbert.druid.net 12.1-RELEASE-p1 FreeBSD 12.1-RELEASE-p1
GENERIC  amd64 if it matters.

Cheers.

-- 
D'Arcy J.M. Cain <darcy at druid.net>         |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 788 2246     (DoD#0082)    (eNTP)   |  what's for dinner.
IM: darcy at Vex.Net, VoIP: sip:darcy at druid.net